1st Test:Math/ SI/ Equations/ Study Guide

Question 1

Equation to get Celsius with kelvin:

Answer 1

C=K - 273

Question 2

Equation to get Fahrenheit with Celsius:

Answer 2

F= (9/5)C + 32

Question 3

Equation to get Kelvin with Celsius:

Answer 3

K= C + 273

Question 4

Equation to get Celsius with Fahrenheit:

Answer 4

C = (5/9) ( F - 32)

Question 5

Density formula:

Answer 5

D = M / V

Question 6

Length (name, symbol)

Answer 6

meter, m

Question 7

Mass (name, symbol)

Answer 7

kilogram, kg

Question 8

Thermodynamic temperature (name, symbol)

Answer 8

kelvin, k

Question 9

Amount of substance (name, symbol)

Answer 9

mole, mol

Question 10

Celsius temperature (name, symbol)

Answer 10

degrees Celsius, C

Question 11

10^3 (name, symbol, numeric value)

Answer 11

kilo, k, 1 000

Question 12

10^2 (name, symbol, numeric value)

Answer 12

hector, h, 100

Question 13

10^-1 (name, symbol, numeric value)

Answer 13

deci, d, 0.1

Question 14

10^-2 (name, symbol, numeric value)

Answer 14

centi, c, 0.01

Question 15

10^-3 (name, symbol, numeric value)

Answer 15

milli, m, 0.0001

Question 16

10^-6 (name, symbol, numeric value)

Answer 16

micro, u, 0.000 001

Question 17

10^-9 (name, symbol, numeric value)

Answer 17

nano, n, 0.000 000 001

Question 18

10^-12 (name, symbol, numeric value)

Answer 18

pico, p, 0.000 000 000 001

Question 19

1kg=_______g

Answer 19

1000

Question 20

1m=______mm

Answer 20

1000

Question 21

1L=_______mL

Answer 21

1000

Question 22

mL=____

Answer 22

cm^3

Question 23

What are the parts of the scientific method?

Answer 23

• observation
• hypothesis
• experiment
• conclusion

Question 24

What are the 7 SI base units?

Answer 24

Time (seconds)
Length (meters)
Mass (kilograms)
Temperature (kelvin)
Amount of a substance (mole)
Electric Current (ampere)
Luminous intensity (candela)

Question 25

Difference between a base unit and a derived unit:

Answer 25

Base- based on something in the real world

Derived- combination of base units

Question 26

Difference between precision & accuracy:

Answer 26

Precision- the reproducibility of a measurement (hit in same area)
Accuracy- how close a measurement is to the true or accepted value (hit the dart board)

Question 27

Write in Scientific Notation:

a. 3429
b. 0.00157
c. 25.47
d. 25.48 x 10^8

Answer 27

a. 3.429 x 10^3
b. 1.57 x 10^-3
c. 2.547 x 10^1
d. 2.548 x 10^9

Question 28

How many sig figs in the following:

a. 150
b. 150.
c. 0.00048
d. 40607

Answer 28

a. 2
b. 3
c. 2
d. 5

Question 29

How does uncertainty in measurements come about?

Answer 29

• the last digit in a sig fig is always uncertain
• instrument you work with (limitations)
• how careful person is running the lab

Question 30

Difference between quantitative and qualitative data:

Answer 30

Quantitative- amount, how much

Qualitative- appearance, color, odor, taste